CN106301324B - Pressure sensing key structure and terminal equipment with same - Google Patents
Pressure sensing key structure and terminal equipment with same Download PDFInfo
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- CN106301324B CN106301324B CN201510306889.0A CN201510306889A CN106301324B CN 106301324 B CN106301324 B CN 106301324B CN 201510306889 A CN201510306889 A CN 201510306889A CN 106301324 B CN106301324 B CN 106301324B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/975—Switches controlled by moving an element forming part of the switch using a capacitive movable element
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The invention belongs to the technical field of keys, in particular relates to a pressure sensing key structure and terminal equipment with the same, and aims to solve the technical problems that a mechanical key in the existing terminal equipment occupies a large space, is easy to enter water, has weaker overall structural strength, has poorer reliability and is easy to cause false touch. The invention realizes pressure measurement through a simply supported beam type pressure sensing component. When a user applies pressure in the pressing zone, the pressure is transmitted to the first fulcrum through the terminal equipment structural frame, and then the pressure is transmitted to the elastic bearing plate. And meanwhile, as the supporting piece is fixed on the terminal equipment structural frame, the reaction force of the user applied force acts on the second supporting point, and the pressure is concentrated on the elastic bearing plate. The elastic bearing plate deforms under the action of pressure. The pressure sensor detects the deformation of the elastic bearing plate, outputs a pressure signal to the pressure sensing detection circuit, and outputs the pressure signal to the processor for action after analysis and processing.
Description
Technical Field
The invention belongs to the technical field of keys, and particularly relates to a pressure sensing key structure and terminal equipment with the same.
Background
In the prior art, terminal devices, such as mobile phones and tablet computers, use mechanical keys to realize on-off and volume adjustment of the terminal devices. Referring to fig. 1, since the mechanical key needs to have a certain stroke to be effective, a mounting hole 2011 for accommodating the mechanical key cap 202 needs to be formed on the structural frame 201 of the terminal device. When the user presses the mechanical key cap 202, the mechanical key stroke control piece 203 is compressed inwards to reach a certain stroke, so that the mechanical key circuit 204 can be activated, and the system can recognize key information. The existing mechanical keys are not beneficial to the structural design of the whole terminal equipment, the occupied space of the keys is large, the antenna arrangement is not beneficial, the existence of the mounting holes is easy for the terminal equipment to enter water, and the structural strength of the whole terminal equipment is reduced to a certain extent. Meanwhile, due to the fact that service life of the mechanical keys is limited, user operation can be affected, and reliability is poor. The existing terminal equipment can adopt a capacitive key, and the capacitive key is easy to be touched by mistake, so that key operation is not facilitated.
Disclosure of Invention
The invention aims to provide a pressure sensing key structure, which aims to solve the technical problems that a mechanical key in the traditional terminal equipment occupies a larger space, is easy to enter water, has weaker strength of the whole structure, has poorer reliability and is easy to cause false touch.
The invention is realized in that the pressure sensing key structure comprises a terminal equipment structure frame and a supporting piece which is arranged at intervals with the terminal equipment structure frame, wherein an accommodating space is formed between the terminal equipment structure frame and the supporting piece, the pressure sensing key structure further comprises an elastic bearing plate which is connected to the two first supporting points and a pressure sensor which is connected to the second supporting points, the pressure sensing component comprises two first supporting points which are arranged on the inner side surface of the terminal equipment structure frame at intervals, and a second supporting point which is arranged on one side of the supporting piece and faces the terminal equipment structure frame, a pressing area is formed in a region between the two first supporting points of the terminal equipment structure frame, the projection of the pressing area surrounds the projection of the second supporting points along the thickness direction of the terminal equipment structure frame, the elastic bearing plate is propped against the pressure sensor along the thickness direction of the terminal equipment structure frame, and the pressure sensing key structure further comprises a processor, the pressure sensor and a signal acquisition circuit which is electrically connected with the pressure sensor, and is used for acquiring signals when the signals are electrically connected to the pressure sensor, and the signal acquisition circuit is used for acquiring the signals.
Further, the pressure sensing assembly further comprises two first colloids used for bonding the terminal equipment structure frame and the elastic bearing plate, and one second colloid used for bonding the pressure sensor and the supporting piece, the two first colloids are in one-to-one correspondence to form two first fulcrums, and the second colloid is formed to be the second fulcrums.
Further, the pressure sensing assembly further comprises a third colloid for bonding the elastic bearing plate and the pressure sensor.
Further, the terminal equipment structure frame is a middle frame, a surface shell or a bottom shell, and the thickness range of the pressing area is 0.5mm to 2mm; or the terminal equipment structure frame is a touch screen, a display screen or a touch display integrated screen, and the thickness range of the pressing area is 0.5mm to 5mm.
Further, the terminal equipment structure frame is divided into a first terminal equipment structure frame and a second terminal equipment structure frame, a mounting hole is formed in the first terminal equipment structure frame, the second terminal equipment structure frame is a fingerprint identification module with an information acquisition key, the information acquisition key is arranged in the mounting hole in a penetrating mode, the pressing area is located on the information acquisition key, the supporting piece and the fingerprint identification module are arranged at intervals, two first supporting points are located on the fingerprint identification module, one second supporting point is located on the supporting piece, the elastic bearing plate is connected to the two first supporting points, the pressure sensor is connected to the second supporting points, and the elastic bearing plate and the pressure sensor are propped against each other along the thickness direction of the first terminal equipment structure frame.
Further, the terminal equipment structure frame is a touch screen, a display screen or a touch display integrated screen, at least two pressure sensing assemblies are distributed on the inner side surface of the terminal equipment structure frame, and all pressure sensors in the pressure sensing assemblies are electrically connected with the processor through the pressure sensing detection circuit.
Further, the total thickness of the pressure sensing component is greater than the spacing of the support member from the structural frame of the terminal device.
Further, the support is mechanically coupled to the terminal equipment structural frame; or, the supporting piece and the terminal equipment structure frame are of an integrated structure.
Another object of the present invention is to provide a terminal device including a pressure-sensitive key structure.
Further, the terminal device is provided with a front side wall, a back side wall arranged at intervals with the front side wall and a side frame arranged between the front side wall and the back side wall; the pressing area is positioned on the positive side wall, and the pressure sensing component is arranged on the inner side surface of the positive side wall; or the pressing area is positioned on the back side wall, and the pressure sensing component is arranged on the inner side surface of the back side wall; or, the pressing area is located on the side frame, and the pressure sensing component is arranged on the inner side surface of the side frame.
Compared with the prior art, the invention has the technical effects that: the invention realizes pressure measurement through a simply supported beam type pressure sensing component. When a user applies pressure in the pressing zone, the pressure is transmitted to the first fulcrum through the terminal equipment structural frame, and then the pressure is transmitted to the elastic bearing plate. And meanwhile, as the supporting piece is fixed on the terminal equipment structural frame, the reaction force of the user applied force acts on the second supporting point, and the pressure is concentrated on the elastic bearing plate. The elastic bearing plate deforms under the action of pressure. The pressure sensor detects the deformation of the elastic bearing plate, outputs a pressure signal to the pressure sensing detection circuit, and outputs the pressure signal to the processor for action after analysis and processing. The pressure sensing key structure occupies a small space, is favorable for antenna arrangement, overcomes the problems that terminal equipment is easy to enter water, the strength of the whole structure is weak and the reliability is poor due to the installation holes and the mechanical keys, and can prevent false touch.
Drawings
Fig. 1 is a schematic structural diagram of a terminal device provided in the prior art.
Fig. 2 is a schematic structural diagram of a pressure-sensitive key structure according to a first embodiment of the present invention.
Fig. 3 is an exploded view of the pressure sensitive key structure of fig. 2.
Fig. 4 is a schematic structural diagram of a pressure sensing key structure according to a second embodiment of the present invention.
Fig. 5 is a perspective view of a terminal device according to a first embodiment of the present invention.
Fig. 6 is a perspective view of a terminal device according to a second embodiment of the present invention.
Fig. 7 is a perspective view of a terminal device according to a third embodiment of the present invention.
Fig. 8 is an exploded perspective view of a terminal device according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 2, a pressure-sensitive key structure provided in a first embodiment of the present invention includes a terminal device structure frame 10 and a supporting member 20 disposed at a distance from the terminal device structure frame 10, an accommodating space 50 is formed between the terminal device structure frame 10 and the supporting member 20, the pressure-sensitive key structure further includes a pressure-sensitive component 30 accommodated in the accommodating space 50, the pressure-sensitive component 30 includes two first supporting points 33 disposed at intervals on an inner side of the terminal device structure frame 10 and a second supporting point 34 disposed on a side of the supporting member 20 facing the terminal device structure frame 10, a pressing area 11 is formed in a region of the terminal device structure frame 10 between the two first supporting points 33, a projection of the pressing area 11 surrounds the second supporting point 34 along a thickness direction of the terminal device structure frame 10, the pressure-sensitive component 30 further includes an elastic carrier plate 31 connected to the two first supporting points 33 and a pressure sensor 32 connected to the second supporting point 34, the elastic carrier plate and the pressure sensor are abutted against each other along the thickness direction of the terminal device structure frame 10, the pressure-sensitive key structure further includes a processor (fig. 32), and the pressure-sensitive sensor is electrically connected to the pressure sensor 32 and is electrically connected to a signal-receiving circuit for outputting a signal when no-sensing signal is outputted from the signal-receiving circuit (fig. 32 is processed).
The present invention achieves pressure measurement by means of a simply supported beam pressure sensing assembly 30. When the user applies pressure to the pressing area 11, the pressure is transmitted to the first fulcrum 33 through the terminal device structural frame 10, and then the pressure is transmitted to the elastic carrier plate 31. At the same time, since the support member 20 is fixed to the terminal device structural frame 10, the reaction force of the user's applied force acts on the second fulcrum 34, and the pressure is concentrated on the elastic bearing plate 31. The elastic carrier plate 31 is deformed by the pressure. The pressure sensor 32 detects the deformation of the elastic bearing plate 31, the pressure sensor 32 outputs a pressure signal to the pressure sensing detection circuit, and the pressure signal is output to the processor for action after analysis and processing. The pressure sensing key structure occupies a small space, is favorable for antenna arrangement, overcomes the conditions that the terminal equipment 100 is easy to enter water, the strength of the whole structure is weak and the reliability is poor due to the installation holes 15 and the mechanical keys, and can prevent false touch.
The elastic bearing plate 31 is a plate material with a certain thickness and elastic deformation. The elastic bearing plate 31 has elastic deformation, and under the action of external force to a certain extent, the plate can timely recover to the original state of the plate, and the functions and the characteristics are kept unchanged. The elastic carrier plate 31 has a certain thickness, and different thicknesses provide the greatest difference in the holding deformation. The pressure sensor 32 is a thin film pressure sensor, and includes a pressure sensing layer and a pressure sensing component disposed on the pressure sensing layer, where the pressure sensing component is a layer or a circuit having a pressure sensing effect. The film pressure sensor is the prior art and will not be described again. The supporting piece 20 is in a sheet shape, and the supporting piece 20 is fixedly arranged on the terminal equipment structural frame 10 and used for fixing the pressure sensing component 30, so that the position of the pressure sensing component 30 is fixed, and the stress is uniform. Preferably, the support 20 is a metal fixing strip having a certain thickness and strength.
For a pressure sensing key structure, there are two first fulcra 33 fixed on the same side of the elastic carrier plate 31, and one second fulcra 34 fixed on the other side of the elastic carrier plate 31. The first pivot 33, the elastic bearing plate 31, the pressure sensor 32 and the second pivot 34 together form the simply supported beam type pressure sensing assembly 30, and the pressure sensing assembly 30 has the functions of strain transfer and pressure sensing concentration. The first pivot point 33 is fixed to the terminal structure frame 10 and the second pivot point 34 is connected to the support member 20. When pressure is applied to the pressing area 11, the pressure sensing assembly 30 can convert a force perpendicular to the structural frame 10 of the terminal equipment into bending deformation of the simply supported beams. When the elastic carrier plate 31 is subjected to bending deformation, the pressure sensor 32 can recognize the bending of the elastic carrier plate 31 and detect the pressure applied to the terminal device structural frame 10 from the outside. Meanwhile, the pressing on the area between the two corresponding first fulcrums 33 of the terminal equipment structural frame 10 can transmit the applied pressure to the pressure sensing assembly 30, and meanwhile, the deformation of the simply supported beams caused by the pressure is concentrated on the corresponding positions of the second fulcrums 34, so that the concentration of the pressure is realized.
Further, the pressure sensing component 30 further includes a first glue 33 for bonding the structural frame 10 of the terminal device and the elastic carrier 31, and a second glue 34 for bonding the pressure sensor 32 and the support 20, where the two first glue forms two first fulcrums 33 in one-to-one correspondence, and the second glue forms a second fulcrums 34. The terminal structure frame 10 and the elastic carrier plate 31 are bonded by a first adhesive 33, and the pressure sensor 32 is connected to the support member 20 by a second adhesive 34. The first colloid 33 and the second colloid 34 not only form the pivot of the simply supported beam, but also facilitate the installation of the pressure sensing component 30. It will be appreciated that the first pivot point 33 and the second pivot point 34 may also be implemented using other mechanical connections, such as welding. Alternatively, the first supporting point 33 is integrally formed on the structural frame 10 of the terminal device, the second supporting point 34 is integrally formed on the supporting member 20, and the elastic bearing plate 31 and the pressure sensor 32 are sandwiched between the first supporting point 33 and the second supporting point 34, so long as the simply supported beam type pressure sensing component 30 is formed.
Further, the pressure sensing component 30 further includes a third adhesive 35 for adhering the elastic carrier plate 31 to the pressure sensor 32. The elastic carrier plate 31 is connected with the pressure sensor 32 through a third colloid 35. This structure facilitates the assembly of the elastic carrier plate 31 with the pressure sensor 32.
Further, the terminal device structural frame 10 is a center, a face or a bottom case, and the thickness at the pressing area 11 is in the range of 0.5mm to 2mm. The middle frame, the face case or the bottom case refers to parts designed and processed by the terminal device 100. The middle frame, the surface shell or the bottom shell can be made of metal materials such as stainless steel, magnesium aluminum alloy and the like, and can also be made of composite materials such as ABS, PC and the like. Preferably, the thickness at the pressing zone 11 is 1.0mm. Alternatively, the terminal device structural frame 10 is a touch screen, a display screen, or a touch display integrated screen, and the thickness range at the pressing area 11 is 0.5mm to 5mm. The thickness range at the pressing area 11 is defined for bonding the pressure sensor 32, ensuring sensitivity of the key. The structural frame 10 of the terminal equipment needs to ensure structural strength to prevent the breakage, deformation, etc. of the product by the user due to the external force.
Further, the first colloid 33 is a double sided adhesive, an acrylic foam adhesive, a UV adhesive, an AB adhesive or a silica gel; the second colloid 34 is double-sided adhesive, acrylic foam adhesive, UV adhesive, AB adhesive or silica gel; the third colloid 35 is double faced adhesive tape, acrylic foaming adhesive tape, UV adhesive tape, AB adhesive tape or silica gel. It is understood that other colloids may be used for the first colloid 33, the second colloid 34, and the third colloid 35.
Further, the support 20 is mechanically connected to the terminal device structural frame 10. In particular, the mechanical connection between the support 20 and the end device structural frame 10 may be a fastener connection, a weld, a snap-fit, or other type of mechanical connection. The mechanical connection can provide a strong and stable connection without slow changes and failures over time and environmental changes. Alternatively, the support 20 is integrally formed with the terminal device structural frame 10. I.e. a pre-designed fixed structure on the end device structural frame 10.
Further, referring to fig. 3, a space between the support member 20 and the terminal device structural frame 10 is reserved in advance for placing the pressure sensing component 30; the total thickness D2 of the pressure sensing component 30 is greater than the spacing D1 between the support 20 and the terminal device structural frame 10; in this way, the pressure sensing component 30 is used in an interference fit during assembly; specifically, the pressure sensing assembly 30 is always in a pressurized state after assembly, and the pressurized state is balanced after assembly, so that the pressure input by the surface of the structural frame 10 of the terminal device can be sensitively detected. Further, the total thickness of the pressure sensing component 30 is 1.05 times to 1.5 times the distance between the support member 20 and the end device structural frame 10. Preferably, the pressure sensing component 30 has a total thickness of 0.9mm and the support member 20 is spaced from the end device structural frame 10 by a distance of 0.8mm. It will be appreciated that the total thickness D2 of the pressure sensing component 30 may also be equal to or less than the spacing D1 between the support member 20 and the end device structural frame 10, but this approach does not provide as good a measure of surface pressure.
Further, a key identifier for indicating the pressure sensing component 30 is disposed on the pressing area 11. Is convenient for the user to operate. The center positions of the pressure sensors 32 are in one-to-one correspondence with the center positions of the key marks.
Further, the elastic bearing plate 31 is a metal piece or an injection molding piece. Preferably, the elastic bearing plate 31 is a stainless steel sheet of 0.4 mm; alternatively, the elastic carrier plate 31 is an ABS sheet material of 0.6 mm.
Referring to fig. 2, the pressure sensing key structure provided in the first embodiment of the present invention is applied to the on/off key, the volume key and the function key of the terminal device 100. And the pressure sensing detection circuit is electrically connected with the pressure sensing sensor and is used for identifying the pressing signal of the user, analyzing and processing the pressing information of the user acquired by the pressure sensing sensor and outputting a processing result. And a processor electrically connected to the pressure sensor 32 for providing a switch, volume adjustment or other actuation signal based on the pressure information provided by the pressure sensor 32. The pressure sensing detection circuit and the processor are both in the prior art.
The pressure sensing key structure is applied to a switch key, when a switch signal is received, the processor collects pressure information and time information of a user pressing the key position, analyzes and processes the collected pressure information and time information, and outputs the switch signal.
The pressure sensing key structure is applied to the volume key, when receiving the volume adjusting signal, the processor collects pressure information and time information of the user pressing the position of the volume key, calculates the pressing times, analyzes and processes the collected pressure time information, and outputs a volume adjusting signal according to the pressing times.
Referring to fig. 4, a pressure sensing key structure provided by a second embodiment of the present invention is substantially the same as that provided by the first embodiment, and is different from the first embodiment in that: the terminal device structure frame 10 is divided into a first terminal device structure frame 10a and a second terminal device structure frame 10b, the first terminal device structure frame 10a is provided with a mounting hole 15, the second terminal device structure frame 10b is a fingerprint identification module with an information acquisition key 16, the information acquisition key 16 is arranged in the mounting hole 15 in a penetrating mode, the pressing area 11 is located on the information acquisition key 16, the supporting piece 20 and one side, deviating from the pressing area 11, of the fingerprint identification module are arranged at intervals, two first supporting points 33 are located on the fingerprint identification module, one second supporting point 34 is located on the supporting piece 20, an elastic bearing plate 31 is connected to the two first supporting points 33, a pressure sensor 32 is connected to the second supporting points 34, and the elastic bearing plate and the pressure sensor are propped against each other along the thickness direction of the first terminal device structure frame 10 a.
The fingerprint/optical recognition module collects fingerprint information or optical information through the information collection key 16, and the fingerprint/optical recognition module is the prior art and will not be described again. The pressure sensing component 30 is attached below the fingerprint/optical recognition module, and the supporting member 20 is fixedly arranged on the first structural frame 10a of the terminal device, so as to form a pressure switch circuit capable of fingerprint/optical recognition. When a user is operating the fingerprint/optical recognition module, the fingerprint/optical recognition module detects the amount of pressure applied by the user while recognizing the user's fingerprint information or optical information. The pressure recognition circuit outputs pressure information, the fingerprint/optical recognition module outputs fingerprint/optical information to the processor, and the processor gives actions such as on-off after recognizing the pressure information, and meanwhile, judges whether unlocking/encryption and the like are completed or not by matching with the fingerprint/optical information. Thus realizing the integration of fingerprint/optical, startup and shutdown or other key functions. The scheme solves the problem that a plurality of mechanical keys are still required to be added after the fingerprint/optical module is added to the terminal equipment. The configuration quantity of keys is reduced, the convenience of design is improved, and the user experience is improved.
Referring to fig. 2 and 5, a terminal device 100 according to a first embodiment of the present invention includes a pressure-sensitive key structure. The terminal equipment structural frame 10 has a front side wall 12, a back side wall 13 disposed apart from the front side wall 12, and a side frame 14 disposed between the front side wall 12 and the back side wall 13; the pressing area 11 is formed on the front side wall 12, and the pressure sensing component 30 is disposed on a side of the front side wall 12 facing away from the pressing area 11. The front side wall 12 may be a touch screen, a display screen, or a front frame. The pressure-sensitive sensor is preset below the front touch screen, display screen or front frame of the terminal device 100, and at this time, the touch screen, display screen or front frame of the terminal device 100 is the terminal device structural frame 10. The pressing area 11 on the pressure sensing assembly 30 is represented as function keys of the terminal device 100, such as "menu", "return", "home" and the like.
Referring to fig. 2 and 6, a terminal device 100 according to a second embodiment of the present invention is substantially the same as the terminal device 100 according to the first embodiment, and differs from the first embodiment in that: the pressing area 11 is formed on the back side wall 13, and the pressure sensing component 30 is disposed on a side of the back side wall 13 facing away from the pressing area 11. The back side wall 13 is referred to as a bottom shell. The pressure sensor 32 is adhered to the inside of the bottom case, and performs a key function by the fitting of the bottom case with the terminal device 100. The on-off key, the volume key, are provided on the rear case of the terminal device 100. Meanwhile, the pressure key may be defined as other forms of keys. The original key design on the side of the terminal device 100 is abandoned and the key design is moved to the back shell of the product. The mechanical keys are removed, so that the product design is attractive, and the three-proofing performance of the product is improved.
Referring to fig. 2 and 7, a third embodiment of the present invention provides a terminal device 100, which is substantially the same as the terminal device 100 provided in the first embodiment, and differs from the first embodiment in that: the pressing area 11 is formed on the side frame 14, and the pressure sensing component 30 is disposed on a side of the side frame 14 facing away from the pressing area 11. The side frames 14 are no longer configured as prior art mounting holes (fig. 1), but rather are configured as one piece. The pressure sensing component 30 is adhered to the inner side of the side surface of the terminal device structural frame 10, so as to realize the original functions of switch, volume and volume. The problem that the structural strength is reduced due to the mounting hole structure of the terminal equipment structural frame 10, and bending and fracture of the terminal equipment can occur under certain conditions is solved. Meanwhile, due to the integrated design, mechanical keys are removed, and more choices are provided for realizing the functions of beautifying the appearance, preventing water and the like.
Referring to fig. 2 and 8, a terminal device 100 according to a fourth embodiment of the present invention is substantially the same as the terminal device 100 according to the first embodiment, and differs from the first embodiment in that: the terminal device structure frame 10 is a touch screen, a display screen or a touch display integrated screen, at least two pressure sensing components 30 are distributed on the inner side surface of the terminal device structure frame 10, and pressure sensors 32 in all the pressure sensing components 30 are electrically connected with the processor through a pressure sensing detection circuit.
Specifically, 4 or more than 4 pressure sensing assemblies 30 are preset behind the display screen, so that the pressure sensing assemblies 30 are distributed behind the display screen according to a certain arrangement, and the structural stability of the terminal equipment structural frame 10 is ensured. Meanwhile, the support 20 is formed by a middle frame, a frame, etc. which the terminal device 100 itself has; the support 20 is mechanically coupled to the end device structural frame 10. The mechanical connection may be a soft connection formed by using double sided tape or VHB (very high strength glue), or a connection with high hardness formed by using UV dispensing or silicone.
When a user presses the surfaces of the touch screen and the display screen, pressure is transmitted to the pressure sensing assembly 30 through the touch screen and the display screen, so that the elastic bearing plate 31 is bent and deformed, the pressure sensor 32 detects the deformation of the elastic bearing plate 31, and a pressure signal is output to the pressure sensing detection circuit; the pressure sensing detection circuit detects data of 4 or more pressure sensing components 30 arranged below the touch screen and the display screen, performs unified processing, and transmits the processed data to the processor. The processor can output corresponding program operation according to the position touch information obtained by the touch screen and the display screen and the pressure information detected by the pressure sensing detection circuit.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The utility model provides a forced induction button structure which characterized in that: the pressure sensing key structure comprises a terminal equipment structure frame and a supporting piece arranged at intervals with the terminal equipment structure frame, wherein an accommodating space is formed between the terminal equipment structure frame and the supporting piece, the pressure sensing key structure further comprises an elastic bearing plate and a pressure sensor, wherein the elastic bearing plate is accommodated in the accommodating space, the pressure sensing component comprises two first supporting points arranged at intervals on the inner side surface of the terminal equipment structure frame, and a second supporting point arranged on one side of the supporting piece, which faces the terminal equipment structure frame, the supporting piece forms a pressing area in a region between the two first supporting points, the projection of the pressing area surrounds the projection of the second supporting points along the thickness direction of the terminal equipment structure frame, the elastic bearing plate is propped against the pressure sensor along the thickness direction of the terminal equipment structure frame, the pressure sensing key structure further comprises a processor, and a signal acquisition circuit, wherein the signal acquisition circuit is electrically connected with the processor and used for acquiring the signal of the pressure sensor is used for acquiring the signal of the signal;
the pressure sensing assembly further comprises two first colloids used for bonding the terminal equipment structure frame and the elastic bearing plate, and one second colloid used for bonding the pressure sensor and the supporting piece, wherein the two first colloids correspond to each other one by one to form two first fulcrums, and the second colloid forms the second fulcrums; or the first supporting point and the second supporting point are welded; or, the first supporting point is integrally formed on the terminal equipment structural frame, and the second supporting point is integrally formed on the supporting piece;
the pressure sensing assembly further comprises a third colloid for bonding the elastic bearing plate and the pressure sensor;
the total thickness of the pressure sensing component is greater than the distance between the supporting piece and the terminal equipment structural frame.
2. The pressure sensitive key structure of claim 1, wherein: the terminal equipment structure frame is a middle frame, a surface shell or a bottom shell, and the thickness range of the pressing area is 0.5mm to 2mm; or the terminal equipment structure frame is a touch screen, a display screen or a touch display integrated screen, and the thickness range of the pressing area is 0.5mm to 5mm.
3. The pressure sensitive key structure of claim 1, wherein: the terminal equipment structure frame is divided into a terminal equipment first structure frame and a terminal equipment second structure frame, a mounting hole is formed in the terminal equipment first structure frame, the terminal equipment second structure frame is a fingerprint identification module with an information acquisition key, the information acquisition key is arranged in the mounting hole in a penetrating mode, the pressing area is located on the information acquisition key, the supporting piece and the fingerprint identification module are arranged at intervals, two first supporting points are located on the fingerprint identification module, one second supporting point is located on the supporting piece, the elastic bearing plate is connected to the two first supporting points, the pressure sensor is connected to the second supporting points, and the elastic bearing plate and the pressure sensor are propped against each other along the thickness direction of the terminal equipment first structure frame.
4. The pressure sensitive key structure of claim 1, wherein: the terminal equipment structure frame is a touch screen, a display screen or a touch display integrated screen, at least two pressure sensing assemblies are distributed on the inner side surface of the terminal equipment structure frame, and all pressure sensors in the pressure sensing assemblies are electrically connected with the processor through the pressure sensing detection circuit.
5. The pressure sensitive key structure of any of claims 1 to 4, wherein: the support is mechanically connected to the terminal equipment structural frame; or, the supporting piece and the terminal equipment structure frame are of an integrated structure.
6. A terminal device, characterized by: comprising a pressure sensitive key structure as defined in any one of claims 1 to 5.
7. The terminal device of claim 6, wherein: the terminal equipment is provided with a front side wall, a back side wall arranged at intervals with the front side wall and a side frame arranged between the front side wall and the back side wall; the pressing area is positioned on the positive side wall, and the pressure sensing component is arranged on the inner side surface of the positive side wall; or the pressing area is positioned on the back side wall, and the pressure sensing component is arranged on the inner side surface of the back side wall; or, the pressing area is located on the side frame, and the pressure sensing component is arranged on the inner side surface of the side frame.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510306889.0A CN106301324B (en) | 2015-06-05 | 2015-06-05 | Pressure sensing key structure and terminal equipment with same |
| PCT/CN2016/073646 WO2016192409A1 (en) | 2015-06-05 | 2016-02-05 | Pressure sensing means and electronic device having said pressure sensing means |
| CN201680032862.XA CN107735951B (en) | 2015-06-05 | 2016-02-05 | Pressure sensing device and electronic equipment with same |
| US15/579,443 US10338719B2 (en) | 2015-06-05 | 2016-02-05 | Pressure sensing apparatus and electronic device having said pressure sensing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510306889.0A CN106301324B (en) | 2015-06-05 | 2015-06-05 | Pressure sensing key structure and terminal equipment with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106301324A CN106301324A (en) | 2017-01-04 |
| CN106301324B true CN106301324B (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510306889.0A Active CN106301324B (en) | 2015-06-05 | 2015-06-05 | Pressure sensing key structure and terminal equipment with same |
| CN201680032862.XA Active CN107735951B (en) | 2015-06-05 | 2016-02-05 | Pressure sensing device and electronic equipment with same |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680032862.XA Active CN107735951B (en) | 2015-06-05 | 2016-02-05 | Pressure sensing device and electronic equipment with same |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10338719B2 (en) |
| CN (2) | CN106301324B (en) |
| WO (1) | WO2016192409A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20180164938A1 (en) | 2018-06-14 |
| CN107735951B (en) | 2021-08-31 |
| WO2016192409A1 (en) | 2016-12-08 |
| US10338719B2 (en) | 2019-07-02 |
| CN106301324A (en) | 2017-01-04 |
| CN107735951A (en) | 2018-02-23 |
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